Biography: Dr. Wen received a bachelor's degree from Zhengzhou University in 2006; from 2011 to 2016, he studied at the University of Münster and the Technical University of Ilmnau in Applied Physics and received a doctorate degree. From 2017 to 2019, he worked as a postdoctoral researcher at the University of Connecticut. He has won the China National Scholarship for Outstanding Self-Financed International Students, IEEE-CT Best Oral Paper Award, University of Connecticut PostDoc Funding Award, Vebleo Fellow (Junior), etc. So far, he has published more than 40 SCI-indexed papers in top international journals, such as Nature Nanotechnology, Energy & Environmental Science, ACS Nano, Nano Letters, Advanced Science, Advanced Functional Materials, etc. He is also a co-founder of Westlake Micro-Nano-Tech Co., Ltd.

Aluminum-Based Multiscale 3D Lithography: Concept, Strategy, and Applications

Liaoyong Wen* (wenliaoyong@westlake.edu.cn)

School of Engineering, Westlake University

Complex structures are ubiquitous in biological systems. Over millions of years, biological systems have evolved optimized functions based on their unit cells' beneficial size and material effects that contribute to favorable mechanical and physical properties. Inspired by these biological systems, many trial-and-error reverse-engineering and computational methods have been utilized to mimic these structures for various applications, such as light management, flexible sensing, wetting control, adhesion, and electrocatalysis. One most challenging is manufacturing man-made systems with controllable features spanning multiple length scales, particularly down to the nanoscale, which seriously impacts the system’s collective properties. In this talk, I will introduce a new concept of aluminum-based 3Dlithography (AL-3Dlitho) enabled by the aluminum surface work hardening phenomenon. Combining AL-3Dlitho with different deposition methods, various high-precise homogeneous and heterogeneous multiscale materials across at least 10⁸ length scales could be designed and fabricated. Finally, I will talk about how to understand the structure-property relationships and pursue desired properties by fully utilizing the customized multiscale structures on different length scales, including plasmonic metasurface-based optoelectronics and multifunctional sensors.